Brisbane on May 3rd was a glorious 15 to 25C (or 60F – 77F) and yet the price of electricity was shocking.

The scale of the graph is so distorted that all the normal price gyrations fall to nothing, and there is only the spike — a full hour of $14,000 burning for every megawatt, and the state needing 7,000 megawatts. The demand level, or load is not unusual, but it’s about $100 million in electricity.

And this is the nice time of year for electricity managers, or it used to be. With weather that’s ideal for human habitation most air-conditioners and heaters are off. But the sun is setting earlier, and solar power is shrinking just as everyone gets home from work to turn on the oven.

AEMO

Some may blame the “lack of coal power”, but notice what’s happening to wind and solar power at critical time from 5:20pm to about 6:30pm.

All the wind and solar power in Queensland on May 3, 2022 |

Though there are other factors at work too and some are a bit mysterious according to Paul McArdle. Queensland at one point had only a 7% instantaneous reserve plant […]